Nutrition Research Group, Department of Clinical Sciences, Centre for Health Sciences, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain.
Br J Nutr. 2009 Dec;102 Suppl 1:S64-86. doi: 10.1017/S0007114509993151.
The EURopean micronutrient RECommendations Aligned (EURRECA) Network of Excellence needs clear guidelines for assessing the validity of reported micronutrient intakes among vulnerable population groups. A systematic literature search identified studies validating the methodology used for measuring usual dietary intake during pregnancy. The quality of each validation study selected was assessed using a EURRECA-developed scoring system. The validation studies were categorised according to whether the study used a reference method that reflected short-term intake ( < 7 d) long-term intake ( > or = 7 d) or used biomarkers (BM). A correlation coefficient for each micronutrient was calculated from the mean of the correlation coefficients from each study weighted by the quality of the study. Seventeen papers were selected, which included the validation of fifteen FFQ, two dietary records (DR), one diet history and a Fe intake checklist. Estimates of twenty-six micronutrients by six FFQ were validated against 24-h recalls indicating good correlation for six micronutrients. Estimates of twenty-four micronutrients by two FFQ were validated against estimated DR and all had good or acceptable correlations. Estimates of fourteen micronutrients by three FFQ were validated against weighed DR indicating good correlations for five. Six FFQ were validated against BM, presenting good correlations only for folic acid. FFQ appear to be most reliable for measuring short-term intakes of vitamins E and B6 and long-term intakes of thiamin. Apart from folic acid, BM do not add any more certainty in terms of intake method reliability. When frequency methods are used, the inclusion of dietary supplements improves their reliability for most micronutrients.
EURopean micronutrient RECommendations Aligned (EURRECA) 卓越网络需要明确的指导方针来评估弱势人群群体报告的微量营养素摄入量的有效性。一项系统的文献检索确定了验证用于测量怀孕期间常规饮食摄入量的方法的研究。使用 EURRECA 开发的评分系统评估了每个验证研究的质量。根据研究使用反映短期摄入（<7d）长期摄入（≥7d）的参考方法还是生物标志物（BM），对验证研究进行了分类。从每个研究的相关系数的平均值计算每个微量营养素的相关系数，并用研究的质量对其进行加权。选择了十七篇论文，其中包括十五份 FFQ、两份膳食记录（DR）、一份饮食史和一份 Fe 摄入量检查表的验证。通过与 24 小时回忆相比，对六种 FFQ 估计的二十六个微量营养素进行了验证，表明六个微量营养素的相关性良好。通过两种 FFQ 对二十四个微量营养素的估计进行了验证，与估计的 DR 相符，所有这些都具有良好或可接受的相关性。通过三种 FFQ 对十四种微量营养素的估计进行了验证，与称重 DR 相符，其中五个的相关性良好。六种 FFQ 与 BM 进行了验证，仅叶酸表现出良好的相关性。除了叶酸，BM 并不能在摄入方法可靠性方面提供更多的确定性。当使用频率方法时，包含膳食补充剂可以提高它们对大多数微量营养素的可靠性。
